Effectiveness of Collaborative e-Test Construction

This paper focuses on one of the features of e-testing, which has not been discussed until now, collaborative test construction by several test-authors in distant places. It is well known that collaborative work has many advantages. The main idea of this paper is to apply the unique advantages of collaborative work to e-test construction. The purpose of this paper is to identify the important factors in constructing high-quality tests. It does this by comparing test reliabilities and validities based on test theory for tests constructed by different numbers of test-authors (one, three, and five) with and without the experts of the test domain. The results show that the number of test-authors is the most important factor in improving test validity. They also show that test reliability does not depend on the number of test-authors but rather on the participation of an expert